Compatible with all Apple Watches, including Apple Watch Ultra, Apple Watch Series 8/7/6/5/4/3/2/1, Apple Watch SE 2/1, plus AirPods Pro (2022) At just the size of a USB flash drive, itll slip in your pocket or any compartment in your bag, so you can slide out the door and take reliable charging for your Apple Watch with you anywhere. Enjoy a more streamlined, portable way to power up your time. The magnetic cover securely attaches to the front to keep the connector totally protected when youre on the go. Then when youre ready to charge, it magnetically snaps onto the back to stay safe and always within reach.